<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>展开运算符合并数组</title>
</head>
<body>
   <script>
   const arr1=[1,2,3,4,5]
   const arr2=[6,7,8]
   const arr3=['one','two','three','four','five']
   const arr=[...arr1,...arr2,...arr3]
   console.log(arr)
   </script>
</body>
</html>